The blockwork begins

The laying of the blockwork walls began on Monday 12th (yesterday). They've laid blocks from the foundation to the bottom of the new brick courses and they're building up the inner skin of the building as a blockwork wall, ready to key into the existing walls when the southern-most wall is removed. In other words, they're building the walls of the extension, before they knock the old house through.
A good idea of the length of the glass fronted gable can now be seen from the length of the blockwork along the rear of the house - I still can't see whether it'll be too big, too small, or just right.